# Preventing Undue Discrimination and Preference in Transmission Service
> **US Department of Energy** · Order on Rehearing and Clarification. · Published 2009-03-25 · Effective 2009-03-25 · 74 FR 12540
## Document
- **Document number:** E9-6502
- **Category:** other
- **Sub-agency:** US Department of Energy
- **Federal Register citation:** 74 FR 12540
- **CFR reference:** 18 CFR 37
- **Publication date:** 2009-03-25
- **Effective date:** 2009-03-25
- **Energy docket:** Docket Nos. RM05-17-004 and RM05-25-004
## Abstract

The Federal Energy Regulatory Commission affirms its basic determinations in Order Nos. 890, 890-A and 890-B, granting rehearing and clarification regarding certain revisions to its regulations and the pro forma open-access transmission tariff, or OATT, adopted in Order Nos. 888 and 889 to ensure that transmission services are provided on a basis that is just, reasonable, and not unduly discriminatory. The Commission grants clarification of the degree of consistency required in the calculation of available transfer capability by transmission providers and denies rehearing regarding the requirement to undesignate network resources used to serve off-system sales

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/03/25/E9-6502/preventing-undue-discrimination-and-preference-in-transmission-service)
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